Non-resonant phonograph-cabinet



W. H. COLE NON-RESONANT PHONiJGRAPH CABINET.

APPLICATION FILED MAY 6| 1920.

Patentd Nov. 29, 1921.

Afro/Mex 1? A TE tics.

WILLIAM H. COLE, OF NEWARK, NEW JERSEY.

NON-RESONANT PHON'OGRAPH-CABINET.

Specification of Letters Patent.

Patented Nov. 29, 1921.

Application filed May 6, 1920. Serial No. 379,242.

Y 0 aZZ whom it may concern:

Be it known that I, WILLIAM H. COLE, a citizen of the United States, residing at Newark, in the count of Essex and State of New Jersey, have invented a new and useful Non-Resonant Phonograph-Cabinet, of which the following is a specification.

The principal object of the present invention is to provide a cabinet incapable of sympathetic sound vibration and yet con sisting externally of solid metal and presenting the beautiful appearance and other advantages of design and finish of that material. Other objects of the invention are to avoid joints, to provide sufficient weight and solidity, and to have control of the density of the metal. Additional objects of the invention will appear from the following description at the end of which the invention will be claimed.

In the accompanying drawings I have illustrated one embodiment of the invention and in those drawings- Figure 1, is an elevational view, and

Fig. 2, is a detail section.

The talking machine cabinet shown in the drawings is incapable of sympathetic sound vibration and is composed of a unitary exterior structure of electrolytically deposited metal 1, of any required density or porosity, and of a unitary interior structure 2, of cement material having no fundamental tone and upon which the metal is electrolytically deposited, constituting in effect a unitary laminated structure. Since the cabinet is incapable of sympathetic sound vibration, it in no way mars or detracts from the Vibrations or tonal qualities of the reproduction, yet externally it consists of solid metal capable of great beauty of design and finish. The interior structure 2, may consist of cement, plaster of Paris, papier mach and the like, because these are examples of cement material having no fundamental tone, or in other words, they are incapable of sympathetic resonance, but in the described association with metal, electrolytically deposited upon them, they oppose and prevent its sympathetic resonance, making the cabinet as a whole incapable of sympathetic sound vibrations, In the matter of design there are advantages because elaborate designs even in high relief can be readily etched, as with muriatic acid, or otherwise produced, upon the structure 2, and these designs are readily structure. If the designs are undercut, or

in fact whatever their configuration may be, the metal structure 1, conforms to them. The structure 2, being of moldable material, can be readily made in one piece and without joints. 3, is sound reproducing mechanism arranged within the cabinet, and 4, is a ing in the composite laminated wall of the cabinet.

foundation for the reproducing mechanism. In the use of the described cabinet and reprodiicing mechanism the reproduction is much better than with cabinets having sym-' pathetic resonance, such as wooden cabinets, and the appearance, finish and reproduction are much better than with cabinets of reed, rattan and the like; in fact the advantages of metal arerpre sent and its disadvantages are absent. I

I claim: A phonograph cabinet composed externally of metal and internally of cement plaster upon which the metal is deposited and which is a unitary structure possessed of weight and solidity.

7 WILLIAM H. COLE,

The describedcabinet is of suffi- 'cient weight and solidity to afford a proper reproduced in the metal structure 1, by coatsound eXit which may well be the only'open- 

